104 lines
3.4 KiB
Swift
104 lines
3.4 KiB
Swift
//
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// SampleHandler.swift
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// Broadcast Extension
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//
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// Created by Alex-Dan Bumbu on 04.06.2021.
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//
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import ReplayKit
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import OSLog
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let broadcastLogger = OSLog(subsystem: "dev.solsynth.solian", category: "Broadcast")
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private enum Constants {
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// the App Group ID value that the app and the broadcast extension targets are setup with. It differs for each app.
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static let appGroupIdentifier = "group.solsynth.solian"
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}
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class SampleHandler: RPBroadcastSampleHandler {
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private var clientConnection: SocketConnection?
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private var uploader: SampleUploader?
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private var frameCount: Int = 0
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var socketFilePath: String {
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let sharedContainer = FileManager.default.containerURL(forSecurityApplicationGroupIdentifier: Constants.appGroupIdentifier)
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return sharedContainer?.appendingPathComponent("rtc_SSFD").path ?? ""
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}
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override init() {
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super.init()
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if let connection = SocketConnection(filePath: socketFilePath) {
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clientConnection = connection
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setupConnection()
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uploader = SampleUploader(connection: connection)
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}
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os_log(.debug, log: broadcastLogger, "%{public}s", socketFilePath)
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}
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override func broadcastStarted(withSetupInfo setupInfo: [String: NSObject]?) {
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// User has requested to start the broadcast. Setup info from the UI extension can be supplied but optional.
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frameCount = 0
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DarwinNotificationCenter.shared.postNotification(.broadcastStarted)
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openConnection()
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}
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override func broadcastPaused() {
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// User has requested to pause the broadcast. Samples will stop being delivered.
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}
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override func broadcastResumed() {
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// User has requested to resume the broadcast. Samples delivery will resume.
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}
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override func broadcastFinished() {
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// User has requested to finish the broadcast.
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DarwinNotificationCenter.shared.postNotification(.broadcastStopped)
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clientConnection?.close()
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}
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override func processSampleBuffer(_ sampleBuffer: CMSampleBuffer, with sampleBufferType: RPSampleBufferType) {
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switch sampleBufferType {
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case RPSampleBufferType.video:
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uploader?.send(sample: sampleBuffer)
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default:
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break
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}
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}
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}
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private extension SampleHandler {
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func setupConnection() {
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clientConnection?.didClose = { [weak self] error in
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os_log(.debug, log: broadcastLogger, "client connection did close \(String(describing: error))")
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if let error = error {
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self?.finishBroadcastWithError(error)
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} else {
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// the displayed failure message is more user friendly when using NSError instead of Error
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let JMScreenSharingStopped = 10001
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let customError = NSError(domain: RPRecordingErrorDomain, code: JMScreenSharingStopped, userInfo: [NSLocalizedDescriptionKey: "Screen sharing stopped"])
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self?.finishBroadcastWithError(customError)
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}
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}
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}
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func openConnection() {
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let queue = DispatchQueue(label: "broadcast.connectTimer")
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let timer = DispatchSource.makeTimerSource(queue: queue)
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timer.schedule(deadline: .now(), repeating: .milliseconds(100), leeway: .milliseconds(500))
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timer.setEventHandler { [weak self] in
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guard self?.clientConnection?.open() == true else {
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return
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}
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timer.cancel()
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}
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timer.resume()
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}
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}
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